| Brand Name: | LIHUA |
| Model Number: | LH-BL |
| MOQ: | 1 piece |
| Price: | US dollar $30/pc--US dollar $180/pc |
| Payment Terms: | L/C,T/T,Western Union |
| Supply Ability: | 5000 pcs per month |
UNS R50400 Gr. 2 DIN 3.7035 Forged titanium flange blind flange BL F2 150# 300# 600#
BL flange, also known as blind flange, is a connection form of flange without a hole in the middle. It serves two primary functions: blocking the end of pipelines and facilitating pipeline maintenance by allowing easy removal of debris. While it provides the same blocking effect as caps and plugs, the blind flange offers superior convenience as it can be easily disassembled using bolts.
| Nom. Pipe Size | Flange Dia. | Flange Thick | Raised Face Dia. | No. of Holes | Dia. of Bolts | Dia. Of Bolt Circle |
|---|---|---|---|---|---|---|
| 1/2 | 3-1/2 | 7/16 | 1-3/8 | 4 | 1/2 | 2-3/8 |
| 3/4 | 3-7/8 | 1/2 | 1-11/16 | 4 | 1/2 | 2-3/4 |
| 1 | 4-1/4 | 9/16 | 2 | 4 | 1/2 | 3-1/8 |
| 1-1/4 | 4-5/8 | 5/8 | 2-1/2 | 4 | 1/2 | 3-1/2 |
| 1-1/2 | 5 | 11/16 | 2-7/8 | 4 | 1/2 | 3-7/8 |
| 2 | 6 | 3/4 | 3-5/8 | 4 | 5/8 | 4-3/4 |
| 2-1/2 | 7 | 7/8 | 4-1/8 | 4 | 5/8 | 5-1/2 |
| 3 | 7-1/2 | 15/16 | 5 | 4 | 5/8 | 6 |
| 3-1/2 | 8-1/2 | 15/16 | 5-1/2 | 8 | 5/8 | 7 |
| 4 | 9 | 15/16 | 6-3/16 | 8 | 5/8 | 7-1/2 |
| 5 | 10 | 15/16 | 7-5/16 | 8 | 3/4 | 8-1/2 |
| 6 | 11 | 1 | 8-1/2 | 8 | 3/4 | 9-1/2 |
| 8 | 13-1/2 | 1-1/8 | 10-5/8 | 8 | 3/4 | 11-3/4 |
| 10 | 16 | 1-3/16 | 12-3/4 | 12 | 7/8 | 14-1/4 |
| 12 | 19 | 1-1/4 | 15 | 12 | 7/8 | 17 |
| 14 | 21 | 1-3/8 | 16-1/4 | 12 | 1 | 18-3/4 |
| 16 | 23-1/2 | 1-7/16 | 18-1/2 | 16 | 1 | 21-1/4 |
| 18 | 25 | 1-9/16 | 21 | 16 | 1-1/8 | 22-3/4 |
| 20 | 27-1/2 | 1-11/16 | 23 | 20 | 1-1/8 | 25 |
| 24 | 32 | 1-7/8 | 27-1/4 | 20 | 1-1/4 | 29-1/2 |